Deutz-Fahr 221: Wrong Voltage of Internal 5V Reference Source

The system has detected an incorrect voltage level in the internal 5V reference source. This may affect the proper operation of the control system and related components.

1. 1

   Power supply connections

2. 2

   Internal voltage regulation circuit

3. 3

   Control unit wiring

1. 1

   Inspect

   Check the power supply connections for the internal 5V reference source.

2. 2

   Test

   Measure the voltage output of the internal 5V reference source using a multimeter.

3. 3

   Verify

   Confirm the integrity of the internal voltage regulation circuit.